I will be purchasing a digi cam here in the next couple weeks, but am still unsure. This camera will be primarilly used at racetracks and sporting events. I am assuming with this in mind the optical lens is very important, but at the same time so are megapixels. I have found the Powershot S1 IS has everything I need and want, but only 3.2 megapixels. Since I am a Newbie to all this I dont know if that would be fine. Once again this camera would be used just to take pictures at sporting events, and posted on the internet. I guess is what Im really trying to say is, what is a good baseline for optical lens and megapixels to go with for what I'm doing.